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A184458 Half the number of (n+1)X(n+1) binary arrays with equal numbers of majority one 2X2 subblocks and majority zero 2X2 subblocks 0
3, 35, 3090, 1181303, 1925704384, 13061240432092, 364710845961492808, 41619801566809753837565, 19314484317434151178477352552 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Diagonal of A184467
LINKS
EXAMPLE
Some solutions for 3X3
..0..0..0....0..1..0....0..0..0....0..1..0....0..0..1....0..1..1....0..1..0
..1..1..0....1..0..1....1..0..1....0..1..0....0..1..1....1..0..1....1..0..1
..0..1..0....0..1..0....1..1..1....0..1..0....1..0..0....1..0..0....1..0..1
...
...E..M.......E..E.......M..M.......E..E.......M..P.......E..P.......E..E...
...P..E.......E..E.......P..P.......E..E.......E..E.......E..M.......E..E...
CROSSREFS
Sequence in context: A068726 A263512 A093583 * A132940 A132941 A068002
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 15 2011
STATUS
approved

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Last modified May 20 06:19 EDT 2024. Contains 372703 sequences. (Running on oeis4.)